start AOC 2022

2022/Cargo.toml

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+[package]
+name = "advent-of-code-2022"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+advent_of_code_macro = { path = "../advent_of_code_macro" }
+paste = "1.0.9"

2022/input/day_1_sample.txt

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+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000

2022/input/day_2_sample.txt

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+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000

2022/src/day_1.rs

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+advent_of_code_macro::solve_problem!(
+    day 1,
+    Input Vec<Vec<i32>>,
+    parse |input: &str| {
+        let lines = input.split('\n');
+        let mut output = vec![];
+        let mut curr_elf = vec![];
+        for line in lines {
+            if line.is_empty() {
+                output.push(curr_elf);
+                curr_elf = vec![];
+            } else {
+                curr_elf.push(line.parse().unwrap())
+            }
+        }
+        output
+    },
+    part one |data: Input| {
+        data.iter().map(|cals| cals.iter().sum()).max().unwrap()
+    },
+    part two |data: Input| {
+        use std::mem::swap;
+        let cals = data.iter().map(|cals| cals.iter().sum()).fold(
+            (-1, -1, -1),
+            |(mut first, mut second, mut third), mut curr: i32| {
+                if curr > first {
+                    swap(&mut first, &mut curr);
+                }
+                if curr > second {
+                    swap(&mut second, &mut curr);
+                }
+                if curr > third {
+                    swap(&mut third, &mut curr);
+                }
+
+                (first, second, third)
+            },
+        );
+        cals.0 + cals.1 + cals.2
+    },
+    sample tests [24_000, 45_000],
+    star tests [68_923, 200_044]
+);

2022/src/day_2.rs

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+advent_of_code_macro::solve_problem!(
+    day 2,
+    Input i32,
+    parse |_input: &str| {
+        1 + 1
+    },
+    part one |data: Input| {
+        data + 5
+    },
+    part two |data: Input| {
+        data + 10
+    },
+    sample tests [7, 12],
+    star tests [7, 12]
+);

2022/src/lib.rs

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+#[allow(dead_code)]
+mod day_1;
+mod day_2;